发布时间 : 星期四 文章科技英语翻译课后题答案 - 图文更新完毕开始阅读5615070fd1f34693dbef3ea5
the freezing point of the water is lowered. The SCR will only pass current when its gate is pulsed. Newton’s first two laws hold only when they are observed in unaccelerated reference frames. 只有当可控硅的门电极受脉冲作用时才能让电流通过。
An electric current exists when there are charges in
motion. 第3节 翻译练习22 Where the power station will be built is under discussion. Universal connectivity will bring together all the information and services you need and make them available to you regardless of where you are, what you are doing, or the kind of device you are using. 电站建在
通用连接技术将能把你所需要的信息和服务收拢起来。而Then arose the question where we were to buy the generators needed.
Water power station must be built where there are water falls. Where the watt is too small a unit, we may use the kilowatt. 儿
在用瓦作单位
第3节 翻译练习23 Resistant and tolerant
varieties can help mitigate tuber damage where nematodes are present. Most urban areas now have a TDD relay center, where operators serve as intermediaries between TDD users and standard-phone users. Surrounding every magnet there is a region where magnetic forces act. 抗病虫品
现在大部分城市市区都有“耳聋电信装置”
The
reducing top gas, containing 70 percent carbon monoxide plus hydrogen, flows from an outlet pipe located near the top of the DR furnace into the top-gas scrubber, where it is cooled and scrubbed to remove dust particles. 第3节 翻译练习24 The question is whether these relays and breakers come up to the mark. We wonder whether simpler and more inclusive conservation laws exist. There is no difference whether or not the temperature is kept constant. A waterfall, whether it is man-made or natural, also possesses energy. 我们不知道是否有形式更简单、运用范围更广泛的守恒
问题是这些继电器和断
第3节 翻译练习25 Which of these generators is the most efficient has to be tested. The problem is which generator you repair first. As to which of these apparatuses is the best, I can’t give you any definite answer. 这些发电机中哪一个最有效还有
问题是
第3节 翻译练习26 Technology tries to find
applications for new ideas which science discovers. In order to keep the engine speed within the limits which it was designed for, a device which is known as a governor is incorporated in the engine. The basic principle which a tape recorder functions on is that of magnetism. 为了使发
磁
Molecules in turn are made up of atoms,
which are smaller particles still. An experimental station has been established off the Ivory Coast of Africa, which utilizes the different temperature levels of sea
water. Light has a higher frequency than radio vaves or microwaves, which gives it a greater information carrying capacity.
At present, microwave technology, which includes microwave heating and
microwave survey, is being widely applied to industrial and agricultural production. Many people could find that videoconferencing yields productivity gains which make it worth the investment of time and money.
第3节 翻译练习27 Motion is absolute
while stagnation is relative. New types of computers are smaller in size, while they are simpler in operation. Each face is an equilateral triangle, while three faces meet at each vertex. 较简单。 每一个面是一个正三
第3节 翻译
练习28 While a crystal solid melts, there is no change in temperature. While there are heat losses in a steam turbine, I cannot prove it. While a spark of life remains, it is a doctor’s duty to save the patient. 虽
第3节 翻译练习29 It is still not clear in my mind why a generator can produce power. This is why some conjugated polymers exhibit electro-luminescence. We all know why the ground loses heat to the air. 这
我们都知道为何地表把热量输
The reason why elements emit radioactive rays is that they are
constantly decaying. The reason why the turbine doesn’t work is the lack of lubricant.
那台汽轮机运转不灵的原因是
第7章 总复习题 The conductivity of polyacetylene drops
rapidly in contact with air. There is a brighter future for intelligent devices in the home. The scientists found that the blood vessels in the leg cannot swell. Once upon a time, bold claims were made about computers, the future and the “paperless office”. 家庭智能装置仍有着更加光明的前
科学家们发现腿内的血管不会肿胀。
“无纸化办公”做过大胆的预测。 The doctor advised against the use of the new treatment. If a good base cannot be found at a reasonable depth, then a so-called deep foundation must be provided. Magnetic lines of force cannot be seen, but we know they exist by what they do. 们的存在。 医生建议不要使用新的治疗方法。 就要采用所谓的深基础。 We may process directly with Kirchoff’s voltage law for the circuit. The proper values of a and b are determined from two conditions. Optional communications are free from electromagnetic interference. This type of discrepancy could have resulted from differences in kinetics. a和b的值由两个条件决定。 对
光电通信不受电磁的干扰。 这种差异可能
是由动力的不同而造成的。 The visual image of the letters making up the word is converted into its spoken equivalent. Primitive man made weapons, tools, and utensils of copper, brass, and bronze. The longer wavelengths of radio signals pass
through the atmosphere relatively undisturbed. 将组成词的各字母的视觉形象转换成该词对应的发音。 原始人类用铜、黄铜和青铜制作成各种武器、工具和器皿。 Most hardness-testing systems employ a standard load which is applied to a ball or pyramid in contact with the material to be tested. All metals are corrodible under the proper circumstances. The design of the rocket nozzle also has much to do with the behavior of the exhaust and the resulting velocity of the vehicle itself. 多数的硬度实验系统使用一标准载荷加在与实验金属相接触的小球或棱锥上。 所有金属在一定情况下都是可腐蚀的。 火箭喷管的设计与排气的性能及飞行器本身的有效速度有很大关系。 Peripheral milling operations are usually performed on milling machines with the spindle positioned horizontally; however, they can also be performed with end mills on vertical-spindle machines. Copper and aluminum are the best conductors of electric current only after silver. From various experiments we cannot but think the theory still holds good. 周铣作
铜和铝是仅次于银的最好的导电体。
有效的。 Hydrogen is generated from zinc and sulfuric acid. The sort of fish cannot live in the temperate zone, let alone in the frigid zone. The locomotive developed some new problems on its line-test. Gases can be chemisorbed or physically absorbed on solids. 氢由锌和硫酸所产生。 说在寒带了。 这台机车在试运行时出现了一些新问题。 气体能化学吸附或物理吸附在固体上。 Under ideal conditions the fatigue failure will consist of a spotting of the load-carrying surfaces. Oxidation implies the combination of other elements with oxygen to form compounds. 氧化意味着其他元素与氧形成化合物。 第8章 第1节 翻译练习1 This gas (ozone gas) is found some 15 to 35 kilometers above the Earth’s surface in the upper atmosphere or “stratosphere”.
15-35公里的大气层或“同温层”。 Air load can
be placed in equilibrium with inertia load. 气动载荷可以与惯性负载相平衡。 When opposing forces balance each other, a state of equilibrium or balance is reached.
第1节 翻译练习 The microwave is
featured by wide band and the ability to penetrate high altitude ionosphere without obstruction. 微波的特点是频带宽可无阻碍地穿过高空大气电离层。 The deck of the triple-hull submarine is situated much lower and in consequence better utilization of space is possible.
间。 Microscope continues to be a very important tool in science today. 显微镜仍然是今日科学中很重要的工具。 Such waves occur most frequently at stormy latitudes, where the storms tend to come in groups traveling in the same direction, with only short periods separating them.
一过程。 第1节 翻译练习3 As the flight speed increases, there comes a point where the flow reaches the local speed of sound.
到局部音速。 The wheel is considered to be one of the greatest technical advances in human history. 轮子是人类历史上最伟大的技术进步之一。 There is confusion over the differences between basic and applied research. 基础研究和应用研究之间的区别分辨不清。 In contrast to conductors, there are very few free electrons in an insulator. Consideration should be given to
the amount of wear likely to take place before the next inspection falls due. 必须考虑到下次检修之前可能发生的磨损量。 Like the gasoline engine, the diesel engine generally is constructed with several cylinders. 个气缸。 第1节 翻译练习4 Glass does not conduct electricity, neither does the air.
The electric power can be transmitted either by means
of d.c. or a.c. 电既可以 At the next station the angry conductor put Edison and all his things off the train.
第2节 翻译练习1 The technique
is used to detect flaws in equipment. 该项技术被用来探测设备的缺陷。 Conducting an electric current means transmitting electrons. 传导电流就意味着传送电子。 Control of the refrigeration process is simplified by the use of a liquid subcooling control valve. 冷冻过程的控制可采用一个液体过冷控制阀而得到简化。 第2节 翻译练习2 That winter, I did not know the principles of work of this machine, not to speak of designing it. They worked out new control elements, making the operation much easier. 他们研制
He said he would check up and repair these
transformers. 他曾说过他要检查和修理这些变压器。 第2节 翻译练习3 There will be more and more telephones in the futures, and they will be better ones. 将来会有
Decisions about site, silviculture and genetics
will affect harvest volume and log and wood properties. 有关场址、造林术和遗传学的决策将会影响产量以及圆木和木材性质。 Fossil fuels will continue to act as the principal fuel source in the first quarter of the 21st century. 矿物燃料的21世纪在头25年里将仍然是主要的燃料来源。 第2节 翻译练习4 In recent years scientists have found chemicals that affect mood, memory, and other happenings of the mind.
Some
makers have already moved to 17-inch models as their focus while others are keeping the attention on the 15-inch line. 有些制造商已经将注意力转移到17英寸显示器的生
15英寸显示器。 Environment Canada has also
invented a very sensitive instrument that takes ozone layer measurements from the ground. 第2节 翻译练习5 Now attempts are being made to increase the proportion of electrically powered vehicles on the road, particularly by manufacturing an ordinary motor car thus powered. 目前正试图增大道路上电动车辆的比例通汽车。Today the role of neuropeptides in human behavior is creating much interest.
People are still talking
about the historic events of last week, when the first spacemen circled the earth.
。 第3节 翻译练习1
Water necessary for the seed to germinate. 种子发芽需要水分。 It is vital to ensure that a patient is not one of the minority before cutting into his right hemisphere.
It is
usually best to avoid substitution of numerical values until the final formula has been obtained. It is rather difficult to define this quantity precisely. 对这个量要精确地下定义是相当困难的。 When reading a thermometer, it is essential to hold the instrument in an upright position,